energy expenditure, basal

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Related to energy expenditure, basal: basal metabolic rate, Total Energy Expenditure, Resting Energy Expenditure

energy expenditure, basal



The energy used by an individual who is at rest but not asleep. The BEE (expressed as calories) may be calculated by using the Harris-Benedict equations. These account for sex, age, height, and weight. If the individual is sedentary, moderately active, or engaged in strenuous activity, 30%, 40%, or 50%, respectively, are added to the BEE. See: diet; dietetics; food

The Harris-Benedict equation involves W (weight in kg), H (height in cm), and A (age in years). The formulae are:

For women: BEE = 6.55 + (9.6 × W) + (1.8 × H) - (4.7 × A)

For men: BEE = 6.6 + (13.7 × W) + (5 × H) - (6.8 × A)

Hospitalized patients who are nonstressed require 20% more calories than for basal needs.

Energy expended is increased by about 13% over basal needs for each degree centigrade of fever; burn and trauma patients require 40% to 100% more calories than for basal requirements.

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